Game of 52, 26 uppercase and 26 lowercase letters. Made of pale blue plastic to provide confidence when placing the letters in their position. The reverse of each seal shows the appropriate letter, difference between uppercase and lower, directional arrow and a line Central to help with positioning approx. Height - lower box: 30 mm / upper box: 12 mm comes in storage box for safe and compact storage. Made of food quality plastic. Shatterproof.